Here’s a quick guide to the Trump administration’s talks with a number of different countries about tariffs and trade, as markets prepare for another week of headlines and signs of potential agreements.

China on Wednesday unexpectedly appointed a new trade negotiator key in any talks to resolve the escalating tariff war with the United States, replacing trade tsar Wang Shouwen with its envoy to the World Trade Organization.

With travel warnings and revoked visas, the two superpowers locked in a bruising trade war may make students and tourists their bargaining chips.